ICD-11 definition : Homocarnosinosis is a metabolic defect characterised by progressive spastic diplegia,
intellectual deficit and retinitis pigmentosa. This extremely rare disorder has been
reported in only one family, namely a woman and three of her children. The latter
showed but their mother was symptom free. It is therefore uncertain whether there
is a relationship between the biochemical defect and the clinical symptoms. Inheritance
in the reported family seems to be autosomal dominant.;
Homocarnosinosis is a metabolic defect characterised by progressive spastic diplegia,
intellectual deficit and retinitis pigmentosa. This extremely rare disorder has been
reported in only one family, namely a woman and three of her children. The latter
showed but their mother was symptom free. It is therefore uncertain whether there
is a relationship between the biochemical defect and the clinical symptoms. Inheritance
in the reported family seems to be autosomal dominant.